-rfc1939.txt POP3
-rfc2821.txt SMTP
-rfc2822.txt Internet Message Format
rfc977.txt NNTP
+rfc1939.txt POP3
+rfc2015.txt MIME Security with Pretty Good Privacy (PGP)
rfc2045.txt MIME 1
rfc2046.txt MIME 2
rfc2047.txt MIME 3
rfc2048.txt MIME 4
rfc2049.txt MIME 5
rfc2060.txt IMAP4
-rfc2015.txt MIME Security with Pretty Good Privacy (PGP)
+rfc2183.txt The Content-Disposition Header Field
+rfc2342.txt IMAP4 Namespace
+rfc2359.txt IMAP4 UIDPLUS extension
+rfc2487.txt SMTP Service Extension for Secure SMTP over TLS
+rfc2821.txt SMTP
+rfc2822.txt Internet Message Format
+rfc2980.txt Common NNTP Extensions